Games like STEM Defense
Games like STEM Defense include Rogue Tower, Tower Dominion, Emberward, Bloons TD 6, and Kingdom Two Crowns. We matched them by the tags players give STEM Defense on Steam (Tower Defense, Strategy, Roguelike, Hex Grid, and Education): closest matches first, and among equally close ones the better-known games.

Rogue Tower
Shared: Tower Defense · Strategy · Roguelike

Tower Dominion
Shared: Tower Defense · Strategy · Roguelike

Emberward
Shared: Tower Defense · Strategy · Roguelike

Bloons TD 6
Shared: Tower Defense · Strategy · Singleplayer

Kingdom Two Crowns
Shared: Tower Defense · Strategy · Base Building

FTL: Faster Than Light
Shared: Roguelike · Strategy · Singleplayer

Kingdom: New Lands
Shared: Tower Defense · Roguelike · Strategy

Plants vs. Zombies GOTY Edition
Shared: Tower Defense · Strategy · Singleplayer

Thronefall
Shared: Tower Defense · Strategy · Base Building

Dungeon of the ENDLESS™
Shared: Strategy · Tower Defense · Roguelike

The King is Watching
Shared: Tower Defense · Roguelike · Strategy

Wall World
Shared: Tower Defense · Roguelike · Strategy

Nordhold
Shared: Tower Defense · Strategy · Roguelike

They Are Billions
Shared: Strategy · Tower Defense · Base Building

Isle of Arrows
Shared: Tower Defense · Roguelike · Strategy

Hexguardian
Shared: Tower Defense · Roguelike · Strategy

Cluckmech Oasis
Shared: Strategy · Tower Defense · Roguelike

ISLANDERS
Shared: Strategy · Puzzle · Building

Into the Breach
Shared: Strategy · Roguelike · Puzzle

Balatro
Shared: Roguelike · Strategy · Singleplayer

Stoneshard
Shared: Roguelike · Strategy · Procedural Generation

RimWorld
Shared: Strategy · Base Building · Singleplayer

Artisan TD
Shared: Tower Defense · Strategy · Puzzle

Age of Darkness: Final Stand
Shared: Tower Defense · Strategy · Base Building